How To Clean Egr Valve 2003 Chevy Suburban

Acura MDX EGR Valve Replacement Guide
How to make clean or modify the EGR (exhaust gas recirculation) valve in a 1st generation 2001 to 2006 Acura MDX.

2006 MDX Engine Bay
Pry Off Bolt Caps
Iv Outer Round Covers This automotive maintenance tutorial was specifically created to assist owners of the offset generation (2001, 2002, 2003, 2004, 2005 & 2006) Acura MDX in cleaning or changing the EGR (exhaust gas recirculation) valve on the J35A3 or J35A5 VTEC three.5L V6 engine.

Owners of other Acura or Honda vehicles such every bit the RDX, ILX, TLX, RLX, TL, CL, RSX, RL, TSX, ZDX, NSX, Integra, Airplane pilot, Accord, Civic, Fit, Clarity, CR-V, CR-Z, HR-V, Odyssey, Chemical element  and Ridgeline may also discover these DIY instructions to be helpful.

A few compatible replacement EGR valves with their part numbers are every bit follows: Standard Motor Products EGV658, EvanFischer EVA122828256, Wells EGR4175, PT Auto Warehouse EGRV658, OEM 9164, Airtex 4F1001 and the OEM Acura 18011-RCA-A00.

The tools needed to complete this procedure include a small plastic pry bar tool, a 10mm socket with a 1/iv" drive ratchet, a flathead screwdriver, a spray can of penetrating oil, a 12mm socket with an extension bar and a 3/viii" drive ratchet.

Some symptoms of a clogged or declining EGR valve include poor fuel economy (lower MPG), loss of power, rough idling, misfires, detonation (knocking / pinging), stalling and hard starting. You may also see a CEL / SES (check engine light / service engine presently) and/or the VTM-iv alarm lite with an engine error code of P1491 or P0401.
Rear Right Cover
Front end Right Comprehend
Loosen Counterclockwise For easier access to the EGR valve, I recommend removing the plastic engine embrace and the plastic encompass over the front 3 ignition coils.

Apply a small plastic pry bar tool to gently pop out the four round black plastic commodities covers at the corners of the engine cover.

(The two middle covers are decorative just and exercise not need to be removed.)

Set up the four bolt caps aside in a condom place.

Rear Right Bolt
Remove Front Correct Bolt
Plastic Engine Cover Remove the four bolts by turning them counterclockwise with a 10mm socket, an extension bar and a one/four" drive ratchet.

Gear up the four bolts aside in a safe place.

Remove Manifold Cover
Acme of Engine Exposed
Air Intake & Throttle Trunk Advisedly lift off the engine cover and ready it aside in a condom identify.
Plastic Ignition Coils Comprehend
Circular Plastic Fastener
1/4 Turn Counterclockwise Then locate the ii round black plastic fasteners on the encompass on the front end lower part of the engine.

Rotate the fasteners ane/4 turn counterclockwise to unlock them.

Release Right Side Fastener
Pull Off Rubber Hose
Elevator Off Plastic Encompass Pull the safety hose off the height correct side of the plastic cover.

Lift off the plastic cover to reveal the front iii ignition coils.

Set up the encompass aside in a condom place.

Former EGR Valve
Push button In Release Tab
Disconnect Power Plug The EGR valve is located just to the right of the oil filler cap and higher up 2 large coolant hoses.

Gently push in the release push on the grey plastic electric connector earlier sliding it straight off.

Electrical Connector Removed
Spray With Penetrating Oil
12mm Socket & Extensions If the original EGR valve hasn't been removed in many years, I highly recommend loosening the two nuts by spraying a small amount of penetrating oil on to the threads before you try to loosen them.

There accept been reports of the EGR valve mounting studs breaking off due to the nuts being corroded (rusted) in place.

Await at to the lowest degree a few minutes for the penetrating oil to work.

Adhere the 12mm socket to a long extension bar. You could likewise only employ a standard 12mm wrench.

Loosen Counterclockwise
Spin Off 12mm Basics
12mm Basics Removed Loosen the two nuts by turning them in the counterclockwise direction.

Spin off the nuts by hand to prevent from having them fall down into the engine bay.

Prepare the two 12mm nuts aside in a safe place.

Pull Off Old EGR Valve
Inspect EGR Valve
EGR Ports Carefully pull the old EGR valve directly upward and off the engine.

Inspect the EGR valve and besides the ports on the engine.

Siemens AC01 3005E 389780
Clean EGR Ports
Install New EGR Valve The OEM EGR valve on this 2006 MDX was labeled as Siemens part number AC01 - 3005E - 389780.

I recommend buying the Standard Motor Products EGV658 EGR valve since it has excellent reviews on Amazon.

If you lot would like to try cleaning the old EGR valve to meet if that clears your CEL (SES) low-cal and P1491 or P0401 mistake codes, use some Throttle Trunk Cleaner spray or carburetor ("carb") cleaner.

Be sure to cover the diaphragm and electronics on the top role of the quondam EGR valve with a plastic purse to protect them from the cleaning spray.

Permit the cleaner spray to dissolve the carbon deposits and flush them abroad. You could as well gently apply a wire castor to make clean the carbon from the EGR valve and the ports (holes / openings) on the engine.

Another method is to use a moisture/dry out shop vacuum and a small flathead screwdriver to carefully scrape away the built up carbon deposits on the valve and ports while removing them with the suction from the vacuum.

Spin On 12mm Basics
Tighten Clockwise My EGR valve was notwithstanding working perfectly and looked fairly clean for having run 160,000 miles. So I but re-installed it while I wait for the throttle torso cleaner and wire brushes to arrive from Amazon. I plan on cleaning them in the future and besides replacing the damaged gasket.

Two compatible replacement gaskets for the EGR are part number Standard Motor Products VG6 or Fel-Pro 70978.

If you are re-installing the cleaned old valve, brand certain that the metallic gasket is properly positioned on the engine.

If you purchased a new valve, it should have included a new gasket.

Lower the new (or cleaned) EGR valve down into place.

Spin on the two 12mm basics a few turns by paw in the clockwise direction to prevent them from becoming cross threaded.

Torque To sixteen lb-ft
Electrical Connector
Push On Power Plug Tighten the two bolts by turning them in the clockwise direction with the 12mm socket, extension bar and a 3/eight" drive ratchet until they are snug.

If you have a torque wrench, the service manual specification for the 12mm basics is xvi lb-ft.

Push the electrical connector directly on to the valve until information technology clicks deeply into place.

Supplant Front Lower Cover
i/4 Plow Clockwise - Lock
Secure 2d Fastener Lower the ignition coils cover back into place at the front of the engine.

Push the two fasteners back into their holes on the mounting bar.

Rotate the two fasteners 1/4 turn clockwise to secure them in identify.

Re-Attach Prophylactic Hose
Replace Engine Comprehend
Spin In 10mm Bolts Re-attach the pocket-size rubber hose to the acme right part of the ignition coils cover.

Lower the plastic engine cover back into place.

Line upward the bolt holes in the plastic comprehend with their corresponding holes in the manifold cover.

Spin in the four 10mm bolts a few turns in the clockwise management by hand to prevent them from becoming cross threaded.

Tighten Clockwise
Snap On Commodities Caps
EGR Valve Replaced Tighten the four bolts with the 10mm socket and a one/4" drive ratchet until they are snug.

Try to avoid over tightening the bolts to preclude from cracking the plastic cover.

Start the engine and heed closely for any strange sounds.

If you demand to clear the DTC (diagnostic trouble codes), use an OBD2 scanner or you lot can effort disconnecting the 12V automotive bombardment for at to the lowest degree 15 minutes.

Exist certain to record the EGR valve cleaning or replacement in your SUV's service records.

For more, please bank check out all of my 2001-2006 Acura MDX DIY Repair & Maintenance Guides.

Source: https://www.paulstravelpictures.com/Acura-MDX-EGR-Valve-Replacement-Guide/index.html

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